#include <stdio.h>

typedef struct {
    char first_name[32];
    char last_name[32];
    unsigned int birth_year;
} person_t;

typedef struct {
    person_t person;
    char student_number[16];
    unsigned int passed_credits;
} student_t;

int main(int argc, char** argv)
{
    student_t s;
    student_t* s_ptr = &s;
    person_t* p_ptr = (person_t* )&s;

    printf("Student pointer points to %p\n", (void*)s_ptr);
    printf("Person pointer points to %p\n", (void*)p_ptr);

    return 0;
}